[postgis-users] TopologyException and ST_Intersection

[jdmorgan]

Hi Sandro,

Thanks for your reply.  Here is the PostGIS version we are using:  
POSTGIS="1.5.3" GEOS="3.3.1-CAPI-1.7.1" PROJ="Rel. 4.7.1, 23 September 
2009" LIBXML="2.7.6" USE_STATS

Is it easy to upgrade the GEOS or the POSTGIS version for that matter?  
What I mean is it an inplace upgrade?  We are running on a LINUX server 
(CENTOS).

Cheers,
Derek